[infinispan-dev] Transaction table cleanup

[Mircea Markus]

On 18 Oct 2012, at 16:41, Manik Surtani wrote:

> 
> On 18 Oct 2012, at 17:45, Vladimir Blagojevic <vblagoje at redhat.com> wrote:
> 
>> Hey guys,
>> 
>> Investigating why EmbeddedCacheManager#cacheRemove hiccups 
>> DistributedTwoNodesMapReduceTest. As you might recall upon end of 
>> MapReduceTask there is EmbeddedCacheManager#cacheRemove call to remove 
>> intermediate caches across the cluster.
I think you meant ECM#removeCache?
>> Very often, almost every test 
>> run, execution of cache remove is blocked by ongoing transactions that 
>> have not completed - more specifically TransactionTable shows pending 
>> remote transaction. This in turn prevents cache stop call, which in turn 
>> causes a timeout on cache remove thus failing the test.
>> 
>> MapReduce uses txs in MapReduceManagerImpl#combine - it might well be 
>> that there is smth wrong there or it could be that somehow 
> 
> ^^^ Does this mean that to use Map/Reduce now, we *require* that a transaction manager is available, configured and present?
Not really. It's only that the problem Vladimir describes only occurs when you run the MR against transactional caches (there is a tx leak which prevents caches to stop, that should be fixed by a pull request I sent).
> 
>> TxCompletionNotificationCommand is not cleaning up remote txs. Either 
>> way I would appreciate some help here - Mircea?
>> 
>> Regards,
>> Vladimir
>> _______________________________________________
>> infinispan-dev mailing list
>> infinispan-dev at lists.jboss.org
>> https://lists.jboss.org/mailman/listinfo/infinispan-dev
> 
> --
> Manik Surtani
> manik at jboss.org
> twitter.com/maniksurtani
> 
> Platform Architect, JBoss Data Grid
> http://red.ht/data-grid
> 
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Cheers,
-- 
Mircea Markus
Infinispan lead (www.infinispan.org)




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